collaborators

6 papers

quant-ph2026

Evidence for Counterfactual Violation of Local Conservation Laws in Quantum Events

Patrick Cameron, Francesco Di Colandrea, Filippo Cardano +1

Physical conservation laws, such as those of energy and momentum, are generally believed to hold exactly and locally in spacetime, including in quantum phenomena. Yet Aharonov, Pop…

physics.optics2026

Tunable Quantum Interference in Free Space with a Liquid-Crystal Metagrating

Maria Gorizia Ammendola, Italo Machuca Flores, Sneha Dey +9

Structured optical materials provide a promising platform for photonic quantum information processing in free space. Beam splitters, a fundamental building block of photonic circui…

quant-ph2025

Tomographic characterization of non-Hermitian Hamiltonians in reciprocal space

Francesco Di Colandrea, Fabrizio Pavan, Sarvesh Bansal +6

Non-Hermitian Hamiltonians enrich quantum physics by extending conventional phase diagrams, enabling novel topological phenomena, and realizing exceptional points with potential ap…

physics.optics2025

Skyrmionic polarization textures in structured dielectric planar media

Francesco Di Colandrea, Lorenzo Marrucci, Filippo Cardano

Skyrmionic patterns of optical fields have recently emerged across diverse photonic platforms. Here, we show that such textures also arise in the polarization eigenstates of light…

quant-ph2025

Programmable photonic quantum walks on lattices with cyclic, toroidal, and cylindrical topology

Alessio D'Errico, Nazanin Dehghan, Maria Gorizia Ammendola +5

Photonic implementations of unitary processes on lattice structures, such as quantum walks, have been demonstrated across various architectures. However, few platforms offer the co…

physics.optics2025

Compact and programmable large-scale optical processor in free space

Maria Gorizia Ammendola, Nazanin Dehghan, Lukas Scarfe +4

Photonic circuits are central to classical and quantum information processing. While integrated technologies dominate, free-space architectures are emerging as attractive alternati…